Official Answer Key & Detailed Solution
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Correct Answer: Option (B) — Both A and R are true but R is not a correct explanation of A
Concept & Option Breakdown
Standard Reference Verified- Assertion (A) is true: The Ganga Plain is indeed one of the most densely populated regions of India due to its fertile alluvial soil, flat terrain, favorable climate, and abundant water resources.
- Reason (R) is true: The Ganga is extensively harnessed through barrages, canal networks, and diversions for irrigation and power generation.
- However, R is not the direct or sole cause of the high population density; the deep historical settlements, soil fertility, and agricultural carrying capacity are the primary underlying causes.
Both statements are factually true statements of Indian geography, but being 'the most harnessed river' is a result and secondary factor, not the primary fundamental driver for high demographic density.
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